Mine-ventilator



(No Model.) 2Sheets-Sheet 1.

T. WILSON, Jr.

MINE VENTILATOR.

No. 325,034. Patented Aug. 25, 1885.

N PETERS Phulo-Ivthognphur. Waihmgton. nc

(No Model.) 2 Sheets-Sheet 2.

T WILSON, Jr MINE VENTILATOR.

WITNESSES IA/J Nv FETEHS, Phnln-Lllhognpher. Wishmglan. D c

UNITED STATES PATENT Orricn.

THOMAS IVILSON, JR, OF \VASHINGTON, INDIANA.

MINE-VENTILATOR.

EJPECIFICATION forming part of Letters Patent No. 325,034, dated August25, 1885.

(No model.)

To aZZ whom it may concern:

Be it known that I, THOMAS WILsoN, J r., a citizen of the United States,residing at Washington, in the county of Daviess and State of Indiana,have invented a new and useful Improvement in Mine-Ventilators, of whichthe following isa specification, reference being had to the accompanyingdrawings.

My invention relates to machines for ventilating mines; and it consistsin the construction and combination of parts, as will be hereinafterfully described, and particularly pointed out in the claims.

In the drawings, Figure 1 is a view in perspective of my improvedmachine for ventilating mines. Fig. 2 is a bottom plan view. Fig. 3 isan end View taken from the end at which the slides are operated. Fig. 4is a vertical longitudinal section on the line a; 00 in Fig. 2. Fig. 5is a vertical longitudinal sectional view on the line y y in Fig. 2, andFig. 6 is a vertical transverse section on the line 2 e in Fig. 2.

Referring by letter to the accompanying drawings, A designates theincasement or structure in which the fan or suction-blower is erected.One side of the casing forms a bearing for one end of the faushaft B,and the other bearing is upon the longitudinal beam 0. The incasement isprovided with three chambers or compartments. The mid dlc compartment isthe fan-chamber D, and in this chamber the fan or blower E operates,either to supply air to a mine or to exhaust air therefrom, whennecessary, which latter operation is performed without reversing thefan, and by simply manipulating the slides and doors with which theincasement is provided.

The middle or fan chamber is provided with the fan or blower E, and isprovided, also, with the doors G H I J at one end. The doors G I are thelower doors of the pairs of doors, and both open inwardly and rest ininclined positions against inclined strips K, secured to the walls ofthe middle or fan chamber. The doors H J open upwardly and outwardly.

The side chambers or compartments, L M, are located one on each side ofthe fan-chamber, and are constructed in the same incasement. These sidechambers, L M, communicate with the fan-chamber through side openings,N, in the partitions N, and these side openings, N, are provided withsliding doors P P above and below the beam 0. The lower sliding doors,P, are provided with hooklatches which engage eyes in the under side ofthe beams O to hold them in place when they are closed. A A are sidedoors for the side chambers.

The inclosurc is placed over the air-shaft, and when it is desired todischarge or force air into the mine the hinged side doors, A A, withwhich the outer case is provided in its opposite sides, are opened.

The sliding doors I P, the middle slide, E, in the bottom of theincasement, and the doors G H I J should be open, and the fan set inoperation. The air may be discharged from any point in the periphery ofthe fan case. I do not therefore confine myself to any specific locationfor the doors in its periphery.

To exhaust the air from the mine, close the doors A A and the slidingdoor E, and open the hinged doors G H I .I and the side slides, B B, inthe bottom of the incasement, and start the fan, and the air will bedrawn from the mine and discharged into the open air.

By this construction the air can be reversed throughout a mine of anyextent of territory in a few minutes time without stopping the engine orinterfering with it in the least, so that the circulation of the air maybe constantly maintained in the mine.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is-

1. The combination of the incasement having the middle and sidecompartments, doors for the side compartments, openings commu nicatingwith the side and middle compartments, sliding doors for said openings,and openings in the lower sides of the compartments, and slides for saidbottom openings, and the blower located. in the middle compartment,substantially as described.

2. The combination, with the middle compartment having thehorizontally-hinged end doors, and bottom and side openings, and slidesfor said openings, of the side compartments having bottom slides andside doors In testimony that I claim the foregoing as and the blowerlocated in the middle compart- I my own I have hereto aifixed mysignature 1o ment, substantially as described. in presence of twowitnesses.

3. The combination with the middle compartment having the hinged enddoors and THOMAS WILSON bottom and side openings with slides, of theWitnesses: side compartments having bottom slides and JAMES C. LAVELLE,

side doors, substantially as specified. JOHN A. GEETING.

